| Name | Bits length | Chars length | Time sorted | Example |
|---|---|---|---|---|
| Universally Unique Identifier (UUID) | 128 | 36 | 798b3360-f80d-4c96-bf54-f53199e47826 | |
| Universally Unique Lexicographically Sortable Identifier (ULID) | 128 | 26 | 01HK5FBZ84RZ7S04ZZJT8R6S14 | |
| Nano ID | 126 | 21 | Pz0FWDiv-gU0TDpFvNok7 | |
| Time-Sorted Unique Identifiers (TSID) | 64 | 13 | 0EPS3WEPR01GA | |
| K-Sortable Globally Unique Identifiers (KSUID) | 160 | 27 | 2aPKKABHljpqOKM4bWvqZ0TcZJ7 | |
| Collision-Resistant Unique Identifier v2 (Cuid2) | Configurable | Configurable | canndhcswk69cp9gralpkwnb | |
| Sortable, Clock and Random number-based Unique identifier (SCRU128) | 128 | 25 | 03ax97rvc3is5l6qncmzu8fyb |